Maxwell, J. C. (2008). 21 kunci pemimpin efektif. Selangor: PTS Professional Publishing.
Chicago Style CitationMaxwell, John C. 21 Kunci Pemimpin Efektif. Selangor: PTS Professional Publishing, 2008.
MLA CitationMaxwell, John C. 21 Kunci Pemimpin Efektif. Selangor: PTS Professional Publishing, 2008.
Warning: These citations may not always be 100% accurate.